small CI fix

tests/testthat/test-atc.R

@@ -2,7 +2,7 @@ context("atc.R")
 
 test_that("atc_property works", {
   skip_on_cran() # relies on internet connection of server, don't test
-  skip_on_appveyor() # security error on AppVeyor
+  #skip_on_appveyor() # security error on AppVeyor
 
   if (!is.null(curl::nslookup("www.whocc.no", error = FALSE))) {
     expect_equal(tolower(atc_property("J01CA04", property = "Name")), "amoxicillin")